Which bottoms do you have? I'll be honest finding shares for a A bottom plow will be hard. Gentleman named Scott PA might be able to help you.
I took my A bottoms and put N bottoms on mine so I'd be able to find parts. If you have a good salvage yard, they might be able to help you. Also if you have R bottoms, the bolt pattern is the same as an IH I want to say super chief bottom.